The Baha'i Faith is an independent monotheistic religion with its own sacred scriptures, laws, calendar, and holy days. It was founded by Baha'u'llah in 19th-century Persia. The first public mention of the Baha'i Faith in North America was at the 1893 Parliament of Religions in Chicago, IL. The National Spiritual Assembly of the Baha'is of the United States and Canada was incorporated in 1927.

The Baha'i Faith is an independent monotheistic religion with its own sacred scriptures, laws, calendar, and holy days. It was founded by Baha'u'llah in 19th-century Persia. The first public mention of the Baha'i Faith in North America was at the 1893 Parliament of Religions in Chicago, IL. The National Spiritual Assembly of the Baha'is of the United States and Canada was incorporated in 1927.

Using data from the 1980-2010 Religious Congregations and Membership Studies, this list ranks U.S. [UNITS] on the highest total number of adherents and the highest percent of the population who are Bahá'í. You can sort the list by clicking on the column headings.

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In an effort to better match the ASARB standards for adherents, a few religious bodies changed the way their adherents were reported in 2010, including Amish groups, Friends groups, Jewish groups, the Church of Jesus Christ of Latter-day Saints, Non-denominational Christian Churches, and the United Methodist Church. This change does not affect any of the data in the newly released 2010 U.S. Religion Census: Religious Congregations & Membership Study. In fact, the data for these groups are now more comparable to that of other bodies than it was in previous decadal reports.

However, the change in methodology can distort assessments on growth or decline between 2000 and 2010 for each of these groups. County-level 2000 data using the new methodology are not readily available. ASARB staff has adjusted some 2000 county-level adherent statistics to allow for a more accurate picture on growth or decline. The revised maps and charts are now available on-line at www.usreligioncensus.org for those who are interested in these trends.